WO2007024687A2

WO2007024687A2 - Pyrolytic resource recovery system

Info

Publication number: WO2007024687A2
Application number: PCT/US2006/032324
Authority: WO
Inventors: Jerry M. Edmondson
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-08-23
Filing date: 2006-08-18
Publication date: 2007-03-01
Anticipated expiration: 2008-02-23
Also published as: WO2007024687A3

Abstract

A pyrolytic resource recovery system that can be utilized to recover and increase the value of carbon based feedstock comprised of waste material, such as scrap tires, scrap wood, municipal solid waste or waste oil and/or natural resources such as shale oil, tar sand, coal, ultra heavy oil, and agricultural products through thermal conversion to vapor and carbon char, where the conversion oven is of a type, as that disclosed by my US Patent #7032525, permitting the feedstock to be fed continuously, sans air, in measured amounts, as by a rotary airlock valve, and freefall through the oven without the necessity of being pushed through by rotating equipment. The feedstock is quickly thermally transformed to vapor and carbon char through conventional heat exchange enhanced by physical contact of the feedstock with the hot flue gas emanating from the burner(s) providing the process heat. The process heat burners shall be operated in a manner to produce sub-stoichiometric combustion to limit excess oxygen, thereby producing a flue gas that will displace air/oxygen from inside the conversion oven, limiting the possibility of uncontrolled combustion of the feedstock. The system does, however, include a means for introducing a controlled amount of air into the inside of the conversion oven in the event it is desired to establish a controlled burn of a small portion of the feedstock to contribute heat to the process as needed to attain the ideal temperature to thermally transform the feedstock. Derived vapor/flue gas mixture may be directly burned in a furnace to produce heat energy and/or, selectively, delivered to a liquid recovery component to produce liquid product. When the mixture is burned there is, as a component part of the system for delivering the mixture to the furnace, a means of imparting a vigorously turbulent, cyclonic motion as it enters the combustor. The vigorously turbulent cyclonic motion assists the combustion process, attaining complete oxidation with minimum residence time. When the mixture is processed for recovery of liquid product, a portion of the carbon char derived from the thermal transformation of the feedstock and having been discharged from the oven as through a rotary airlock valve, is collected, treated for activation, and utilized as an adsorbent in the liquid recovery component. On this configuration the hot vapor/flue gas mixture is periodically re-routed and used to desorb and reactivate the carbon char. When the vapor/flue gas mixture is burned the exhaust gas product of the combustion will be retained inside the furnace at the condition of temperature and time sufficient to effect complete oxidation of all its constituents that might otherwise cause pollution, after which most of the heat contained in the exhaust gas, will be transferred to water by a heat exchanger, for conversion of the water to steam, and the thusly cooled exhaust gas, will be directed through an exhaust gas cleaning unit utilizing some of the thermally transformed, treated for activation, carbon char as a cleansing agent. The water that is delivered to the exhaust gas heat exchanger for conversion to steam, shall prior to its delivery to that heat exchanger, be preheated through circulation in a heat exchange system that recovers heat and cools the carbon char and some equipment such as rotary airlock valves. Whether the derived vapor/flue gas mixture is directly burned in the combustor or selectively processed for recovery of liquid product there shall be a derived vapor/flue gas motive means that creates a negative pressure in the combustion plenums whereby combustion air may be drawn into the burner(s) without the application of forced draft blowers.

Description

PYJRQiY₁TIC RESOURCE RECOVERY SYSTEM

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates to resource recovery wherein heat is utilized in the process of converting carbon base matter to a hydrocarbon vapor and carbon char.

2. Discussion of the Prior Art

Walker patent# 6,619,214 describes a system of a similar type, which my invention improves, in as much as the Walker system directly combusts all of the converted vapor for the sole purpose of creating heat energy.

Apffel patent# 5,057,189 on the other hand describes a similar system wherein the converted vapor is cooled and condensed with only the non-condensable vapor used as fuel.

My patent# 7,032,525 describes an oven that may be used for the system disclosed by my present invention.

The pyrolysis process has been used in many similar applications including coal gasification wherein the derived vapor is either utilized in it's totality as a vapor to be burned or it's cooled and condensed in totality for the recovery of liquid.

3. Discussion of the Present Invention

Market forces dictate the value of the derived vapor. There are times the value will be highest as heat energy converted to steam and/or electricity. At other times the value as a hydrocarbon liquid for use in manufacturing petrochemical products may offer the greatest value.

My invention teaches a versatile uncomplicated system for thermal conversion whereby the derived vapor can either be used solely as heat energy, cooled and condensed for the recovery qfJjqujd.rhydropar.bQns.pr both and whereby a portion of the converted vapor can be used as fuel to heat the conversion process.

Further my invention teaches a unique configuration of the conversion oven component that affords the transport, tlirough the oven, of the material being converted, in a free-fall manner without the application of rotating equipment such as augers and screws, a means for creating forced convection heating within the conversion oven, a means of inducing air for the purpose of combustion without using forced draft blowers on the burners utilized for said combustion, a means for more efficient and complete combustion when converting the derived vapor to heat energy, a unique method for converting the derived vapor to a liquid product and an efficient way to cleanse the final exhaust vapors.

4. A Brief Description of the Drawings.

Figure 1 illustrates the system with the derived vapor/flue gas being burned to produce heat energy.

Figure 2 diagrams a system for converting at least a portion of the derived vapor to liquid.

PMOL YTIC RESOURCE RECOVERY SYSTEM

DESCRIPTION OF THE INVENTION

Overview:

This invention teaches an advanced pyrolytic processing system for thermally converting virtually any carbon base waste material such as scrap tires, scrap wood, plastics or waste oil, and natural resource such as bituminous coal, tar sand or ultra heavy oil, to a, principally hydrocarbon, vapor and carbon char; whereby the hydrocarbon vapor can be used directly as fuel to generate heat energy or the hydrocarbon vapoi can be processed for the recovery of liquid hydrocarbons, either one or both, without excessive emission of elements that are harmful to the environment. The recovered carbon char will also be a valuable commodity.

This invention teaches several independent features inherently novel in design, construction or application, making this a simpler, more reliable, economical and versatile pyrolysis processing system, as follows:

A. A uniquely shaped conversion oven having a sloped bottom suspended within a heated containment vessel that accommodates the continuous feeding of material, being thermally converted, through the oven in a sliding, free fall fashion without the material being pushed or moved by mechanical means requiring rotating equipment and where the shape with the sloped bottom provides for a space below the high end of the sloped bottom within which the fire used to provide heat for the conversion process can reside without its flame impinging upon the wall of the conversion oven.

B. A means for increasing the heat exchange surface area of the conversion oven and making the oven perform as an efficient convection oven through the introduction of the flue gas, generated by burner(s) that provides the thermal conversion process heat, into the interior of the oven through a uniquely constructed flue gas conduit formed of many relatively small diameter pipes which, ^s with any efficient heat exchanger, will provide more heat exchange surface per foot of length than would a mono tube construction, The flue gas, thusly delivered, will directly contact and mix with the material being fed to the system. Said flue gas is also an agent for displacing, from inside of the oven, excess air and oxygen that could support premature and uncontrolled combustion. The flue gas mixing with the hydrocarbon vapor prior to combustion will also reduce the creation of thermal NOx.

C. Burner means that permits all of the burners incorporated in the system to have their combustion air drawn into the combustion process by a single induction fan that creates a negative pressure throughout the system without the application of forced draft blowers on each burner.

D. Diversion means whereby there is the versatility of delivering the thermally converted hydrocarbon vapor directly to a furnace for use as fuel to generate heat energy or all or part of the hydrocarbon vapor can be directed to a processing unit for the recovery of liquid hydrocarbons.

E. A facility for utilizing some of the converted hydrocarbon vapor and flue gas mixture as fuel to the process burners.

F. A means for providing at least some of the heat for the conversion process by using a portion of the material being fed to the system as fuel for controlled sub-stoichiometric combustion immediately upon its entry into the oven.

G. A hydrocarbon liquid recovery means utilizing part of the converted carbon char as the adsorbent in a selective adsorption process in which desorption of the adsorbing carbon can be carried out by using some of the hot converted hydrocarbon vapor and flue gas as the desorption agent. H. A means for introducing fuel and combustion air to a burner in the furnace utilized to create heat energy from the converted hydrocarbon vapor mixed with flue gas in a manner that creates a vigorously turbulent, centrifugal flame pattern to enhance the thermal oxidation of the volatile organic compounds that would otherwise cause the product of combustion to contain hazardous elements when exhausted into the atmosphere. I. Incorporation of a heat exchanger integral to the furnace used to burn the converted hydrocarbon vapor whereby steam can be generated and delivered for useful purposes. J. An attendant means within the pyrolytic processing system for preheating the steam generator feed water by absorbing heat from the carbon char being discharged from the conversion oven, heat from cooling some of the systems equipment, and heat from the converted hydrocarbon vapor and flue gas product when it is being processed to recover hydrocarbon liquid. K. Incorporation into the processing system of a wet scrubber with a unique contacting and filtering means for the final cleansing of the vapor to be exhausted to the atmosphere. All of the entities summarized above are further described and explained, in conjunction with the schematic drawings appended hereto, in a full, clear and concise manner so as to enable one, skilled in the art to which this invention pertains to make and use the invention and set forth the best mode of carrying it out. Referring to the drawings:

FIG.l There is a sealed conversion oven 1 constructed of a material such as stainless steel that withstands high temperature and will transfer heat, with a bottom Ia which is sloped at least 20 degrees from horizontal, suspended inside of a sealed refractory lined containment vessel 2 that has a fired heating means 3 that when ignited will have its flame burning in the space 8a beneath the high end of the sloped bottom Ia in a manner that will preclude the flame directly impinging upon the bottom or side walls of the oven. Carbon based material, such as scrap tires that have been cut into small

the wire has been removed, will be fed into the ovenl through the inlet conduit 4 wherein the material will be heated to a temperature sufficient to convert it to hydrocarbon vapor and carbon char. The vapor will exit the oven through the vapor outlet conduit 5 and the carbon char will exit the oven through the char discharge conduit 6. The oven 1 can be transformed into an efficient convection oven by having a conduit 7, with its heat exchange surface enhanced through multi-tube construction, connecting the interior of the oven with the space 8 formed between the outside wall of the oven and the inside wall of the refractory lined containment vessel 2, thereby permitting the products of combustion, hereafter referred to as flue gas, emanating from the fired heating means 3 to enter the interior of the oven 1, said fired heating means 3 can be operated in a manner to produce sub- stoichiometric combustion to preclude excess oxygen . The flue gas conduit 7 shall have its entry near the end of the oven opposite the heating means 3 thus causing the flue gas to circulate all around the outside perimeter of the oven 1. The flue gas will exit the conduit 7 close to the material inlet 4 so that the flue gas entering the oven and the material entering the oven will have intimate contact and exceptionally good heat exchange. There will be an oxygen sensor 9, located in proximity to the material inlet 4. On startup, during the oven heat up process, the flue gas will displace the air from the oven and when the oxygen level as detected by sensor 9 is low enough to preclude combustion and the proper processing temperature has been attained, the material to be thermally converted can be continuously fed into the oven. The sensor 9 can also be used to send a control signal to a control valve 9a, the control valve being mounted on a conduit 9b which connects the interior of the oven 1 to the atmosphere outside of the containment vessel 2 in a manner that, when the sensor sends a signal to open the valve 9a, a controlled volume of air will enter the interior of the oven. Provided the temperature of the material entering the oven has reached ignition temperature the air will provide oxygen for controlled combustion of, at least, some of the material being fed into the oven, The combustjon of the material will provide, at least, some of the heat needed for thermally converting the material to hydrocarbon vapor and carbon char. It is essential to maintain the combustion in a sub-stoichiometric state to prevent an explosion as might happen if there was sufficient excess oxygen. The sub-stoichiometric condition is maintained by the sensor being properly set to restrict the opening of the control valve thus limiting the presence of oxygen. Usually the thermally converted vapor/flue gas mixture exiting the oven through conduit 5 will be delivered to a furnace 10 where it is mixed with air and then combusted, creating a flame, for the releasing of heat. This invention teaches that it is important to establish conditions whereby there will be a vigorously turbulent, centrifugal motion of the flame pattern. The turbulent centrifugal motion is established by a number of factors including, a. flowing the vapor/flue gas fuel mixture through a static mixer 5a that imparts a whirling motion as the mixture enters the primary furnace burner 10a, b. introducing the combustion air 10b at a high velocity, tangentially into the furnace in proximity to the burner 10a. c. having a secondary burner 10c providing a fire for ignition and maintenance of the primary burner fire with its flame entering the furnace tangentially in proximity to the burner 10a, and d. utilizing a burner nozzle that accommodates and enhances the centrifugal flame pattern. This vigorously turbulent centrifugal motion of the flame pattern impiτΛ es combustion efficiency and speeds up the oxidation of undesirable constituents. The furnace is constructed wherein the reaction time and the temperature is sufficient to attain complete oxidation of all of the constituents.

This invention also teaches that integral in the construction of the furnace there can be a heat exchanger 20 whereby, after the product of combustion flowing through the furnace 10 has resided within the furnace at the condition of time and temperature sufficient to attain complete oxidation of all the constituents, the hot exhaust gas can be used to heat water for conversion to steam. The water to be converted to steam being fed to the heat exchanger through conduit 2Of can be used, prior to entering th$

h,eat exchanger 20, as a coolant for other processes concurrent to the pyrolytic resource recovery system and pick up preheat in the process. As depicted by FlG. 1, side streams of the feed water, conduits 20 a, b, c & d, can be used to cool the inlet conduit 4a, carbon char discharge 6a, and fuel gas heat exchangers 30b and 30c and there can be numerous other cooling requirements that can add heat to the feed water. The preheated water will be returned to the feed water conduit 2Of via conduit 2Oe.

The invention as illustrated by FIG. 1 also teaches a fuel gas recovery system 30 where a side stream of the thermally converted hydrocarbon vapor and flue gas mixture is drawn off conduit 5 through conduit 30a by a pressure boosting device 30h to be used as fuel to burner 3 and burner 10c. The side stream gas will be passed through a heat exchanger 30b for cooling and a low pressure condensate scrubber 30d to extract condensed liquid and then through the pressure booster 3Oh where the pressure is elevated to the required fuel system pressure. It will then be cooled again by passing through heat exchanger 30c and the additional condensed liquid removed in condensate scrubber 30e.

This invention as illustrated by FIG. 1 also teaches the configuration of a very efficient wet scrubber 40 to insure that no undesirable elements are exhausted into the atmosphere. This wet scrubber utilizing a caustic wash, filter pads and activated carbon will remove virtually all of the contaminating constituents from the final vapor being discharged from this pyrolytic processing system. The vapor enters the wet scrubber through conduit 40a where it first encounters a partition 40b forming an area 40c wherein the vapor contacts the caustic solution being sprayed through a spraying means 4Od. The vapor and the sprayed caustic solution travel concurrently downward through a permeable packed section 4Oe with the flow diffused and distributed by a fluid dynamics control device as described by my patent application number 10/792,197. The dispersed vapor passes under the partition 40b and travels upwardly in space 4Of wherein it will pass through sectior^ 4Og containing activated carbon granules 40gc. that may be made from the recovered char, if . ' 1, ,11 .,! 1! T₁- IV iI ,.¹' "I i ... I. Ii (I ' sandwiched between two stainless steel mesh pads 40ga and 40gb, The conditioned vapor will be discharged from the wet scrubber pollution free, drawn through the system by an induction fan 50 that creates a negative pressure within the entire pyrolytic resource recovery system.

The thermally converted carbon char, the liquid slurry discharged from the wet scrubber and the liquid collected and discharged from the fuel gas scrubbers, will be processed through systems not shown on the appended drawings but well known by those knowledgeable of the applicable art, for the recovery of valuable resources.

FIG. 2 is a schematic diagram of a separate novel adaptation of the invention teaching a means whereby the thermally converted hydrocarbon vapor/flue gas mixture is processed through a liquid hydrocarbon recovery system 60 prior to its combustion in the furnace 10.

Closing valve 5b the mixture will be directed to the liquid recoveiy system through conduit 60a.

The mixture is cooled upon passing through heat exchanger 60b and the condensed liquid is removed by condensate scrubber 60c. The pressure of the mixture is then elevated to the desired process pressure by the pressure boosting means 6Od. The mixture is cooled again by the heat exchanger 6Oe and the resultant condensate is removed by condensate scrubber 6Of. The desired processing pressure is maintained by a back pressure control valve 60g. The final liquid hydrocarbons are extracted from the converted vapor/flue gas mixture by passing the mixture through a bed of activated carbon 6Oh, which can be made from the recovered carbon char, contained in vessel 60hv wherein additional hydrocarbons will be adsorbed for conversion to liquid.

There is a further teaching of a novel way of desorbing the carbon and recovering the liquid hydrocarbon. The desorption process is accomplished by de-pressuring vessel 60hv and redirecting the flow of the thermally converted hydrocarbon vapor/flue gas mixture through conduit 60i into thjβ

60hy, The hot mixture passing upward through the carbon bed 6Oh will drive the hydrocarbons from the carbon bed by absorption into the stream of hot mixture. The hot mixture saturated with hydrocarbons exits the vessel via conduit 6Oj. The saturated mixture will go through first heat exchanger 60b then through the condensate scrubber 60c after which the pressure will be elevated by pressure booster 6Od, the mixture will again be cooled passing through heat exchanger 60e, the bulk of the liquids will be extracted in condensate scrubber 6Of, While the carbon bed de-sorption process is occurring, the cooled and dehydrated vapor will re-enter the conduit 5 via conduit 60k for delivery to the furnace 10, Fuel for the process burners 3 and 10c can be supplied via conduit 60m.

There are other means that can be utilized for recovering the hydrocarbon liquids such as applying refrigeration to the process of cooling the thermally converted hydrocarbon vapor/flue gas mixture or there are other types of desiccants or molecular sieves that can be used as the adsorbing media with the most appropriate means being determined by the material being thermally converted and economic considerations. Summary:

Whether it is better to deliver the thermally converted vapor directly to the furnace as fuel with all of the hydrocarbons available as heat energy or to recover hydrocarbons as liquid will depend on market demand and will vary from application to application. In any case this invention teaches a means for accomplishing either or both. The production of recovered carbon char with many potential commercial applications is added value. The relative simplicity of the disclosed pyrolytic resource recovery system with its versatility, many advantages and efficiencies will be the key to sustained, commercially viable application.

Claims

PYROLYTIC RESOURCE RECOVERY SYSTEM

What I claim is:

1. A pyrolytic resource recovery system for transforming a solid or liquid carbon base feedstock, to hydrocarbon vapor and carbon char for converting the said vapor to heat energy or liquid and producing said char for beneficial use, including an oven for heating said feedstock in an oxygen rare environment comprising: an outer refractory lined containment vessel with fired burner(s) and an inner containment vessel suspended within said outer vessel for receiving heat from said outer vessel, said inner vessel constructed of material such as stainless steel that will transfer heat while maintaining its structural integrity at elevated temperature, said inner vessel suspended in a manner to provide a space surrounding said inner vessel, said space formed between the outside walls of said inner vessel and the inside walls of said outer vessel, piercing both the outer and inner vessels walls an inlet conduit through which said feedstock is continuously fed, sans air, a vapor outlet conduit, a char outlet conduit, and at least one additional conduit piercing only the inner vessel wall connecting the said surrounding space to the inside of said inner vessel with said additional conduit extending into the interior of said inner vessel, ending in proximity of said feedstock inlet conduit in a manner to enable the product of combustion, aka flue gas, emanating from said fired burner(s) and accumulating in said surrounding space, to circulate into the inside of said inner vessel and thereby physically contact the said feedstock and intensify the heat exchange, also there shall be an external means connected to said vapor outlet conduit for creating negative pressure inside said oven whereby the greater atmospheric pressure outside of said oven will push combustion air into the said fired burner(s) without the benefit of a forced draft blower and deliver said vapor selectively to a furnace as fuel to produce heat and/or to a liquid recovery component that utilizes a portion of the said char as an adsorbent in its process to produce liquid. l. A pyroiytic resource recovery system for thermally transforming continuously fed carbon base material into a more valuable commodity comprising: an oven for heating the said carbon base material in an oxygen rare atmosphere to the temperature required for thermal transformation of said material to vapor and char, said oven incorporating fired burner(s) controlled to attain sub-stoichiometric combustion from which the product of said combustion, flue gas, is mixed with said vapor, a containment and collection component for said char, a furnace for burning said vapor mixed with said flue gas, a heat exchanger for transferring the heat generated from the burning of said vapor, an exhaust gas cleaning component downstream of said heat exchanger, incorporating a purification means that utilizes a portion of the said char as a cleansing element, and an induced draft fan.

3. A pyroiytic resource recovery system whereby the value of a carbon base feedstock material is increased through thermal transformation of said material, consisting of and in combination: a conversion oven continuously receiving the feedstock material wherein said material is heated in an oxygen rare atmosphere to a temperature sufficient to thermally decompose said material to form vapor and char, a furnace to burn said vapor, a component to convert said vapor to liquid, a vapor transporting system for delivering said vapor from said conversion oven selectively to either said furnace to be burned to generate heat or to said component to produce liquid, said vapor transporting system shall include, when it is selected to deliver said vapor to said furnace, a device for imparting a cyclonic motion to said vapor as it enters said furnace, and when¹ ij jjs. selected to dieliyer said vapor to said component to produce liquid, a portion of said char will be utilized as an adsorbent.

4. The said oven of claim 1 having said conduit connecting said space to the said inside of said inner vessel be of a multi-tube construction.

5. The said oven of claim 1, including a conduit piercing both said outer vessel and said inner vessel walls providing a means for atmospheric air to enter the inside of said inner vessel with said conduit having an inlet end on the outside of the said outer vessel and an outlet end on the inside of said inner vessel, said outlet end being in proximity of said feedstock inlet conduit, and with said atmospheric air conduit having a control valve on its said inlet end and an oxygen sensing device in proximity of its said outlet end.

6. The said oven of claim 1 , with said feedstock inlet conduit having an inlet end on the outside of said outer vessel and an outlet end on the inside of said inner vessel and said char outlet conduit having an inlet end on the inside of said inner vessel and an outlet end on the outside of said outer vessel, there shall be integral to an externally extended conduit on said inlet end of said feedstock inlet and integral to an externally extended conduit on said outlet end of said char outlet, heat exchangers whereby heat is transferred from said extended conduits into water.

7. The pyrolytic resource recovery system of claim. 1 including on said vapor outlet conduit of said oven an inlet end inside of said inner vessel and an outlet end outside of said outer vessel and on said outlet end attached thereto there shall be a vapor diversion means for routing a portion of said hydrocarbon vapor to a repository for use as fuel for said fired burner(s).

8. The said oven of claim 1 including an oxygen content sensor with its sensing element located inside said inner vessel near said feedstock inlet for the purpose of precluding said feeφtqck- being fisφintQ, sajcl inner vessel until such time as the oxygen content inside said inner vessel has been reduced, through displacement by said flue gas, to a content that will not support combustion of said feedstock.

9. On the said oven of claim 1 having said fired burner(s) operate in a manner to attain sub-stoichiometric combustion thereby precluding the presence of excess oxygen in said flue gas.

10. The furnace of claim 2 including an inlet conduit for receiving said vapors, having attached to its internal surface a spiral shaped structure for the purpose of imparting a centrifugal motion to said vapor passing through said conduit.

11. The pyrolytic resource recovery system of claim 2 including on said oven a material feed inlet, a vapor outlet, and a char outlet, a delivery device such as a rotary airlock valve installed on said inlet to continuously measure and feed the correct volume of said material, sans air, into said oven, and a similar delivery device installed on said char outlet to remove the said char whilst maintaining a proper char inventory inside said oven.

12. The said oven of claim 11, including heat exchange means installed on each of the said material feed inlet and said char outlet, located between the outside oven wall and said delivery device, with water being circulated through said heat exchange means to remove heat and protect said delivery devices from over heating.

13. The pyrolytic resource recovery system of claim 2 having said exhaust gas cleaning component a wet scrubber employing a caustic solution to neutralize SO2 contained in said exhaust gas with said caustic solution being sprayed in a manner to saturate said exhaust gas as it flows through said wet scrubber and passing thusly saturated exhaust gas into an area of said wet scrubber, containing a mist extractor and then passing said exhaust gas through an area that contains said portion of said char and finally passing said gas through a mesh pad, and with said induced draft fan providing the motive force.

14. The pyrolytic resource recovery system of claim 2 where the motive force for supplying combustion air to said fired burner(s) and supplying the combustion air for burning said vapor/flue gas mixture in said furnace is provided by said induced draft fan.

16. The pyrolytic resource recovery system of claim 3 where the heating of said conversion oven is by fired burner(s) from which the product of combustion flue gas physically contacts said feedstock and mixes with said formed vapor.

17. The pyrolytic resource recovery system of claim 16 where the motive force for said formed vapor and the combustion air to said fired burners and to the said furnace for said burning said vapor is provided by an induced draft fan.

18. The pyrolytic resource recovery system of claim 17, when having said portion of said char used as an adsorbent, diverting said flue gas mixed with said formed vapor periodically to desorb said char.

19. The said exhaust gas cleaning component of claim 13 having the said exhaust gas flow in a principally downward direction as it contacts said sprayed caustic solution and incorporating a fluid dynamics control device to promote a plug flow of the said gas, and then routing the said saturated gas in an upward flow direction first through said mist extractor, next through the said area containing said portion of said char and finally through said mesh pad. 20: The

re, S₁QUrCe₁ recovery system of claim 3 whereby the said conversion oven shall continuously receive said feedstock material, sans air, delivered by means that precludes the admission of air, the said conversion oven will be heated by fired burners from which the emanating flue gas is physically contacted with said feedstock and mixed with the derived vapor to heat the said feedstock, in said oxygen rare atmosphere, to a temperature that will decompose it to form vapor and carbon char, there shall be a delivery means including an air lockout device to transport said carbon char from said conversion oven to a collection and containment receptacle, the said device included on said vapor transporting system for imparting said cyclonic action shall be cylindrical and have a spiral shaped structure attached to its interior surface and be located at the vapor entrance to said furnace, said component for converting said vapor to said liquid and using a portion of said char as an adsorbent shall include a means for periodically diverting the said hot vapor/flue gas mixture through the said char to desorb said char, there will be included on said pyrolytic resource recovery system an exhaust gas cleaning component that will use a portion of the said char as a cleansing element and an induced draft fan.